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Inositol lipid regulation of lipid transfer in specialized membrane domains.


ABSTRACT: The highly dynamic membranous network of eukaryotic cells allows spatial organization of biochemical reactions to suit the complex metabolic needs of the cell. The unique lipid composition of organelle membranes in the face of dynamic membrane activities assumes that lipid gradients are constantly generated and maintained. Important advances have been made in identifying specialized membrane compartments and lipid transfer mechanisms that are critical for generating and maintaining lipid gradients. Remarkably, one class of minor phospholipids--the phosphoinositides--is emerging as important regulators of these processes. Here, we summarize several lines of research that have led to our current understanding of the connection between phosphoinositides and the transport of structural lipids and offer some thoughts on general principles possibly governing these processes.

SUBMITTER: Kim YJ 

PROVIDER: S-EPMC3665726 | biostudies-literature | 2013 Jun

REPOSITORIES: biostudies-literature

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Inositol lipid regulation of lipid transfer in specialized membrane domains.

Kim Yeun Ju YJ   Hernandez Maria-Luisa Guzman ML   Balla Tamas T  

Trends in cell biology 20130313 6


The highly dynamic membranous network of eukaryotic cells allows spatial organization of biochemical reactions to suit the complex metabolic needs of the cell. The unique lipid composition of organelle membranes in the face of dynamic membrane activities assumes that lipid gradients are constantly generated and maintained. Important advances have been made in identifying specialized membrane compartments and lipid transfer mechanisms that are critical for generating and maintaining lipid gradien  ...[more]

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